In this study, we present the synthesis and structure–activity relationships (SAR) of novel N-substituted nipecotic acid derivatives closely related to (S)-SNAP-5114 (2) in the pursuit of finding new and potent mGAT4 selective inhibitors. By the use of iminium ion chemistry, a series of new N-s...

Four novel metal-free organic dyes WL1a-b and WL2a-b containing di(1-benzothieno)[3,2-b:2′,3′-d]pyrrole (DBTP) as electron donor were synthesized and applied for dye-sensitized solar cells (DSSCs), where DBTP was firstly employed as a donor in the organic dyes. It has been demonstrated that th...

Our study presents the synthesis and structure-activity relationship (SAR) of novel N-substituted nipecotic acid derivatives closely related to DDPM-1457 [(S)-2a], a chemically stable analog of (S)-SNAP-5114 (1), in the pursuit of finding new and potent mGAT4 selective inhibitors. Iminium ion ch...

Two novel A-π-D-π-A small molecules, BDT-TITRh and BDT-TI2TRh, containing alkylthienyl-substituted benzo[1,2-b:4,5-b’]dithiophene (BDT) as a core building block, together with 2-(thiophen-2-yl)-N-alkyl-thieno [3,2-b]indole (TIT) or 2,6-di(thiophen-2-yl)-N-alkyl-thieno [3,2-b]indole (TI2T) as ...

Currently used antipsychotics are characterized by multireceptor mode of action. While antagonism of dopamine D2 receptors is responsible for the alleviation of “positive” symptoms of schizophrenia and the effects at other, particularly serotonergic receptors are necessary for their additional...

In this paper, the absolute optical frequencies of the hyperfine components of the 5S1/2 – 5D3/2 two-photon transition in rubidium is measured using a femtosecond frequency comb (OFC). In order to Interrogate this transition, a laser light at a wavelength of 778.2 nm is used. This wavelength is...

Botrytis cinerea is an economically important fungal pathogen with a host range of over 200 plant species. Unfortunately, gray mold disease caused by B. cinerea has not been effectively controlled because of its high risk for fungicide resistance development. As a part of our ongoing efforts to ...

Some new aspects of intramolecularly amine-coordinated silylenes, ammonium silaylide, and amine-coordinated magnesium (chloro)silylenoids are summarized. The divalent silicon species bearing the 8-(dimethylamino)-1-naphthyl group, generated by the thermal degradation of a pseudo-pentacoordinated...

The objective of this work was to measure and correlate the solubility of lidocaine hydrochloride in eight pure solvents, including ethanol, n-propanol, isopropanol, n-butanol, isobutanol, acetone, methyl acetate, water, and binary mixtures at (291.15 to 331.15) K by using gravimetric method und...

Abiraterone acetate is a first choice prodrug to treat prostate cancer. New higher-solubility multicomponent crystal forms of the active compound abiraterone could substitute for the commonly used acetate prodrug. Here we prepare abiraterone hydrochloride monohydrate, which is the first multicom...

Atenolol is a cardioselective antihypertensive drug. It is classified under arylethanolamine β adrenergic receptor antagonists. Hypotensive action for this racemic drug was found to be selective for the S-(−)- β receptor blocking stereoisomer as this enantiomer was found to have 20 fold greate...

Owing to the advantages of transient, broadband, low-energy, transmission and high frequency accuracy, terahertz frequency domain spectroscopy (THz-FDS) has been introduced and pioneered for determining chlortetracycline hydrochloride (CCH) and tetracycline hydrochloride (TCH) in environmental s...

The different factors governing the regioselectivity of the metalation of 3-chloro-6-methoxypyridazine with alkylamides were studied. Very hindered bases were used as new metalating agents and a very good regioselectivity was obtained.

In this work, the FT-Raman and FT-Infrared spectra of 3-chloro-6-methoxypyridazine sample were measured to elucidate the spectroscopic properties of title molecule in the spectral range of 3500–50 cm−1 and 4000–400 cm−1, respectively. The molecular geometry and vibrational frequencies of 3-chl...

Over the past 10 years, several anti-viral drugs have become available to fight the HIV infection. Antiretroviral treatment reduces the mortality of AIDS. Nonnucleoside inhibitors of HIV-1 reverse transcriptase are specific and potentially nontoxic drugs against AIDS. The crystal structures of f...

A stereoselective method for the synthesis of 3,4-dihydro-7-nitrocoumarin derivatives via an isocyanide-based four-component reaction is described. The reaction can be carried out as a simple one-pot protocol in good yields without using any catalyst or activator at room temperature in short rea...

The photophysical properties of di-, mono- and non-ethyl 7-aminocoumarins have been investigated in different water/ethanol mixtures. The effect of the solvent composition on the spectral shifts and on the radiationless deactivation process depends on the molecular structure of the dye. The solv...

DPP-IV “a moonlighting protein” has immerged as promising pathway to control Type 2 diabetes as well as found to play key role in earlier stages of cancer. Here we have reported design, synthesis and applications of aminocoumarin derivatives as DPP-IV inhibitors. Compounds have been synthesize...

A method for analysing traces of nitrites is described. The method is based on the diazotization of a heteroaromatic primary amine—4-methyl-7-aminocoumarin (Coumarin 120®)—by nitrite ions in acidic medium. A large excess of Coumarin 120® is mandatory for a quantitative reaction. The correspond...

Solvent polarity effects on the photophysical properties and spectral shifts of some 7-aminocoumarins were investigated in a combined experimental and theoretical study. Solvatochromic shifts were found in accordance with Onsager's coatinuum model and excited state dipole moments were estim...